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/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.launcher3;
import static android.app.admin.DevicePolicyManager.ACTION_DEVICE_POLICY_RESOURCE_UPDATED;
import static com.android.launcher3.Utilities.getDevicePrefs;
import static com.android.launcher3.config.FeatureFlags.ENABLE_THEMED_ICONS;
import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
import static com.android.launcher3.util.SettingsCache.NOTIFICATION_BADGING_URI;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
import android.content.pm.LauncherApps;
import android.os.UserHandle;
import android.util.Log;
import androidx.annotation.Nullable;
import com.android.launcher3.config.FeatureFlags;
import com.android.launcher3.graphics.IconShape;
import com.android.launcher3.icons.IconCache;
import com.android.launcher3.icons.IconProvider;
import com.android.launcher3.icons.LauncherIconProvider;
import com.android.launcher3.icons.LauncherIcons;
import com.android.launcher3.notification.NotificationListener;
import com.android.launcher3.pm.InstallSessionHelper;
import com.android.launcher3.pm.InstallSessionTracker;
import com.android.launcher3.pm.UserCache;
import com.android.launcher3.util.MainThreadInitializedObject;
import com.android.launcher3.util.Preconditions;
import com.android.launcher3.util.RunnableList;
import com.android.launcher3.util.SafeCloseable;
import com.android.launcher3.util.SettingsCache;
import com.android.launcher3.util.SimpleBroadcastReceiver;
import com.android.launcher3.util.Themes;
import com.android.launcher3.widget.custom.CustomWidgetManager;
public class LauncherAppState implements SafeCloseable {
public static final String ACTION_FORCE_ROLOAD = "force-reload-launcher";
private static final String KEY_ICON_STATE = "pref_icon_shape_path";
// We do not need any synchronization for this variable as its only written on UI thread.
public static final MainThreadInitializedObject<LauncherAppState> INSTANCE =
new MainThreadInitializedObject<>(LauncherAppState::new);
private final Context mContext;
private final LauncherModel mModel;
private final LauncherIconProvider mIconProvider;
private final IconCache mIconCache;
private final InvariantDeviceProfile mInvariantDeviceProfile;
private final RunnableList mOnTerminateCallback = new RunnableList();
public static LauncherAppState getInstance(final Context context) {
return INSTANCE.get(context);
}
public static LauncherAppState getInstanceNoCreate() {
return INSTANCE.getNoCreate();
}
public Context getContext() {
return mContext;
}
public LauncherAppState(Context context) {
this(context, LauncherFiles.APP_ICONS_DB);
Log.v(Launcher.TAG, "LauncherAppState initiated");
Preconditions.assertUIThread();
mInvariantDeviceProfile.addOnChangeListener(modelPropertiesChanged -> {
if (modelPropertiesChanged) {
refreshAndReloadLauncher();
}
});
mContext.getSystemService(LauncherApps.class).registerCallback(mModel);
SimpleBroadcastReceiver modelChangeReceiver =
new SimpleBroadcastReceiver(mModel::onBroadcastIntent);
modelChangeReceiver.register(mContext, Intent.ACTION_LOCALE_CHANGED,
Intent.ACTION_MANAGED_PROFILE_AVAILABLE,
Intent.ACTION_MANAGED_PROFILE_UNAVAILABLE,
Intent.ACTION_MANAGED_PROFILE_UNLOCKED,
ACTION_DEVICE_POLICY_RESOURCE_UPDATED);
if (FeatureFlags.IS_STUDIO_BUILD) {
modelChangeReceiver.register(mContext, Context.RECEIVER_EXPORTED, ACTION_FORCE_ROLOAD);
}
mOnTerminateCallback.add(() -> mContext.unregisterReceiver(modelChangeReceiver));
CustomWidgetManager.INSTANCE.get(mContext)
.setWidgetRefreshCallback(mModel::refreshAndBindWidgetsAndShortcuts);
SafeCloseable userChangeListener = UserCache.INSTANCE.get(mContext)
.addUserChangeListener(mModel::forceReload);
mOnTerminateCallback.add(userChangeListener::close);
IconObserver observer = new IconObserver();
SafeCloseable iconChangeTracker = mIconProvider.registerIconChangeListener(
observer, MODEL_EXECUTOR.getHandler());
mOnTerminateCallback.add(iconChangeTracker::close);
MODEL_EXECUTOR.execute(observer::verifyIconChanged);
if (ENABLE_THEMED_ICONS.get()) {
SharedPreferences prefs = Utilities.getPrefs(mContext);
prefs.registerOnSharedPreferenceChangeListener(observer);
mOnTerminateCallback.add(
() -> prefs.unregisterOnSharedPreferenceChangeListener(observer));
}
InstallSessionTracker installSessionTracker =
InstallSessionHelper.INSTANCE.get(context).registerInstallTracker(mModel);
mOnTerminateCallback.add(installSessionTracker::unregister);
// Register an observer to rebind the notification listener when dots are re-enabled.
SettingsCache settingsCache = SettingsCache.INSTANCE.get(mContext);
SettingsCache.OnChangeListener notificationLister = this::onNotificationSettingsChanged;
settingsCache.register(NOTIFICATION_BADGING_URI, notificationLister);
onNotificationSettingsChanged(settingsCache.getValue(NOTIFICATION_BADGING_URI));
mOnTerminateCallback.add(() ->
settingsCache.unregister(NOTIFICATION_BADGING_URI, notificationLister));
}
public LauncherAppState(Context context, @Nullable String iconCacheFileName) {
mContext = context;
mInvariantDeviceProfile = InvariantDeviceProfile.INSTANCE.get(context);
mIconProvider = new LauncherIconProvider(context);
mIconCache = new IconCache(mContext, mInvariantDeviceProfile,
iconCacheFileName, mIconProvider);
mModel = new LauncherModel(context, this, mIconCache, new AppFilter(mContext),
iconCacheFileName != null);
mOnTerminateCallback.add(mIconCache::close);
}
private void onNotificationSettingsChanged(boolean areNotificationDotsEnabled) {
if (areNotificationDotsEnabled) {
NotificationListener.requestRebind(new ComponentName(
mContext, NotificationListener.class));
}
}
private void refreshAndReloadLauncher() {
LauncherIcons.clearPool();
mIconCache.updateIconParams(
mInvariantDeviceProfile.fillResIconDpi, mInvariantDeviceProfile.iconBitmapSize);
mModel.forceReload();
}
/**
* Call from Application.onTerminate(), which is not guaranteed to ever be called.
*/
@Override
public void close() {
mModel.destroy();
mContext.getSystemService(LauncherApps.class).unregisterCallback(mModel);
CustomWidgetManager.INSTANCE.get(mContext).setWidgetRefreshCallback(null);
mOnTerminateCallback.executeAllAndDestroy();
}
public IconProvider getIconProvider() {
return mIconProvider;
}
public IconCache getIconCache() {
return mIconCache;
}
public LauncherModel getModel() {
return mModel;
}
public InvariantDeviceProfile getInvariantDeviceProfile() {
return mInvariantDeviceProfile;
}
/**
* Shorthand for {@link #getInvariantDeviceProfile()}
*/
public static InvariantDeviceProfile getIDP(Context context) {
return InvariantDeviceProfile.INSTANCE.get(context);
}
private class IconObserver
implements IconProvider.IconChangeListener, OnSharedPreferenceChangeListener {
@Override
public void onAppIconChanged(String packageName, UserHandle user) {
mModel.onAppIconChanged(packageName, user);
}
@Override
public void onSystemIconStateChanged(String iconState) {
IconShape.init(mContext);
refreshAndReloadLauncher();
getDevicePrefs(mContext).edit().putString(KEY_ICON_STATE, iconState).apply();
}
void verifyIconChanged() {
String iconState = mIconProvider.getSystemIconState();
if (!iconState.equals(getDevicePrefs(mContext).getString(KEY_ICON_STATE, ""))) {
onSystemIconStateChanged(iconState);
}
}
@Override
public void onSharedPreferenceChanged(SharedPreferences prefs, String key) {
if (Themes.KEY_THEMED_ICONS.equals(key)) {
mIconProvider.setIconThemeSupported(Themes.isThemedIconEnabled(mContext));
verifyIconChanged();
}
}
}
}
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